Liquid crystal display device and method for manufacturing the same
US6774969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1345
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a liquid crystal display device and a method for manufacturing the same, in which wirings connected between pads and an integrated circuit is protected from being corroded. A pixel array is formed on a display region of a substrate. A plurality of pads are formed on a non-display region of the substrate. An integrated circuit is formed on the non-display region of the substrate and connected to the pads to generate a signal for operating the pixel array. Conductive barrier layers separated from each of the pads are formed on peripheral portions of the pads connected to the integrated circuit. The conductive barrier layers have electric potential equivalent to that of each of the pads in accordance with internal connections of the integrated circuit. When bumps of the integrated circuit and the pads are attached to each other, the conductive barrier layers prevent the pads and the wirings connected to the pads from being corroded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.